This feature allows you to switch between the accounts you have access to and monitor each one of them.
Remember: you login with your username (same user like in your online Studio CMS) and you might have permissions to more than one account (which is your private account which was generated when your user was originally created).
If you do have permissions to more than one account, then understanding this feature is important
When you now login with your username to the monitoring & reports tool, this is what you’ll see in the screen monitor:

Notice that you have a table row with the account name and a table row with the managing user name (each account can be shared by multiple users, but can have only one “parent” user which is its managing user).
You now have a menu to allow you to switch into one of your other accounts:

And once you switch to another account, the content of the table in the screen content monitor (as well as in any of the other available report) will change to show you the chosen account:
